Stove construction



c.A M. DIB'BLE STOVE CONSTRUCTION July 17, 192s.

- Fim oct. 15, 192s s sheets-sheet 2.

A v. u. J j w c. M. DIBBLEl sTovE CONSTRUCTION Juiy 17,' 192s. 1,617,585

-FileaooL 13. 1926 s nefs-sneet 3 \\7 /A Q wir Patented July 17K, 1928.

UNTED' STATES PATENTy OFFICE.

CLAUDE M. DIBBLE, OF JOLIET, ILLINOIS, ASSIGNOR TO MOORE BROTHERS COMPANY, i

OF JULIET,v ILLINOIS, A CORPORATION OF ILLINOIS. l

STOVE CONSTRUCTION.

Appli-cation filed October 13, 1926. Serial No. 141,262.

The invention relates in general to stoves and more particularly to heating stoves having integrally formed as h pit'compartments wherein by the provision ot the ash pit p arts,

the provision of a neat and simplified ove assembly, having a light ash pit door and cooperating parts, is accomplished.

In previous stove structures embodying integrally formed ash pit compartments, the advantage or which over ash pits formed of a plurality of separate parts resides chief ly pliies assembly,

in the reduction ot oven partswhich simreduces costs and results in cleaner oven in which ashes, dust, etc. is

' confined in the one piece ash pit, it has been the practice to provide a sloping front wall. rhis necessitates sa horizontally vhinged ash pit door, which reduces the size ot the ash pan for a givenV door opening due to the necessity of- `providing adequate'clearance beneath the overhanging door.

hinged door allows the use ot an ash parrot maximum depth unreduced by the necessity of clearing` beneath a horizontally hingen door and for a given stove capacity pred-- ates the provision oi a smaller door opening, Va consequently smaller and lighter door and smaller and lighter door hinges.

The principal object ofthe invention is ythe provision of an integral ash pit compartnient having a vertical front wall and door supported on vertical hinges to close an ash aperture formed in the front wall of the pit compartment.

Another important objectv of the invention is to provide an ash pit'which will receive or house a deeper ash pan and which provides a greater air space for the circulation of air through the stove and about the combustion chamber. I

Another important object of the invention to provide a method ior moulding an ash pit part `.tor heating stoves having a vertically disposed front or door receiving opening without requiring special coring or (addingv operations.

Numerous other objects and advantages of the invention will be apparent as it is better understood from thefollowing description, which, taken in connection with the accompanying drawings, discloses a preferred embodiment thereof.

L SL Referring to the drawings:

Fig. 1 is a perspective View of a heating ove embodying niy invention and-having A vertically lower portion of the stove taken Yfrom the lett, A(Fig. 1) and having parts including the ash door broken away to showv details of construction i Fig-.8 is a similar view taken from the right (Fig. 2) :havingparts broken-away to show details of construction;

Fig. 4 is a section taken substantially .on line 4-4 in Fig. 2; and y 5 is a sectional view ofa moulding iiash illustrating the method of moulding the ash pit part of the stove.

To illustrate my inventiony I have shown a heating stove of the incased or cabinet typehaving a cabinet or housing 11, parts l2V and 13 providing a combustion chamber, a part 14 formed tov provide an ash pitand a base 15 arranged on or supported from a floor or like vsurface through legs 16. The cabinet ll'niay be any cabinet` or enclosure Vin which the yparts Y12, 13 and 14 may khe mounted and having an air space or circula tion chamber 17 about these parts in which air may be lheateditor heating a room or like-enclosure and having a vertical wall. 18 which ispreferably the front or the wall on which aiire door 19, and ashv pit door 21 are supported. The parts-12 and 13 may be formed separate or of one piece and in any suitable manner or form that is adapted for burning fuel and is formed to commu'- nicate with the lire door 19 so that the combustion or fire may be controlled and maintained. The base part 15 may be of any suitable form that will support the parts 12, 13 and14, and is preferably provided with a plurality of openings 22 through whichair may circulate fromthe bottom of the-stove or from beneath'the stove through the chamber 17` orheating. The legs 16 may be formed on the base or separate there from and suitably secured thereto, as denected through a pair of gears 26 so that rotation of either will cause rotation of one or more of the others. The part 14 may alsosupport the parts 12 and 13 through a suitable flange 27 and is also formed to provide an ash pit 28 into which the fuel ashes be collected for disposal. An ash pan 29 which is preferably formed in' accordance with the form of the ash pit is arranged in the ash pit for removing the ashes. lt is an object of the invention to produce a stove having an ashvpit part that is formed so that it will have a vertical front wall and so that a vertically disposed door may make contact with the ash pit in a substantially vertical plane, further the ash pan 29 may be of a maximum size and the openings 22 in thebase may be of a maximum size. To accomplish these results the mould for the part 14 is moulded so that the pattern draught or the angle of the substantially vertical contacting surfaces of the pattern and mould will have a movement toward and from each other during the withdrawal of the pattern and the assembly of the mould parts, so that in effect the ordinary draught or the draught of the ordinary tilted front wall' of such a part will be transferred to or added to the draught of an opposite wall7 such as the back wall. An opening 32 is also preferably moulded in this wall to provide an ash pit opening or an opening1 through which the ash pan 29 may be inserted and withdrawn. This opening is cast in the part 14 and without cores or like devices by casting the under surface of the top of the opening by one part of the mould and the top `surface of the lower part of the opening by another part of the mould and splitting the mould along a line drawn between a point located at the junction of the outer and under surfaces of the front wall adjacent the opening 32 and a point. located at the junction of the upper and inner surfaces of the wall. The front or outer surface of the wall 31 is or may be machined or otherwise finished to provide a substantially level and Hush face and the ash door 21 may be similarly ground to seat perfectly against this surface. A locking latch 33 is provided. with a handle 34 Aand is adapted t engage the wall 31 for locking the door '21 in closed position. The base part 15 may be formed to provide a well 35 into which the ash pan 29 may be seated if desired. I have illustrated in Fig. 5 one form of mould in which the part 14 may be cast or moulded, as above mentioned. The mould includes a drag mould part 36, a cope mould 37 and an intermediate mould 38. The inner contour of the part 14 is preferably moulded on the drag` part 33 and is outlined by a solid line 39 and t-he part 14. The outer contour or surface of the part 14 is or vmay Abe partly moulded in the mould 38 and partly in the cope 37, or the mould 38 and cope 37 may be formed as a unit and the entire external surface of the part 14 formed by such unit. Lines 41 and 42 are vertical lines extending downwardly from points on the inner surface of the part 14 and lines 43 and 44 representplines of draw or draught. These lines must always be at an angle to the lines 41 and 42 for moulding articles such as the part 14. lf the part 14 were moulded in the flask in a horizontal position it would be necessary to mould the door at an angle equal to the necessary angle of draught and the door frame, or the front wall of the part 14 would therefore not be vertical. In order to make this wall vertical the part 14 is moulded in a tilted position or substantially as shown (Fig. 5) and so that the wall on one side of the part 14 will rest at an angle to vertical which is at least equal to the required draw or draught, and the angle of the opposite wall is equal to or approximately twice that of the draught so that the required draw will be present when the article orwpart 14 isbeing moulded and so that when the part. is removed from the mould it will have a substantially vertical front wall in which the ash pit opening 32 is formed. In the present instance (Fig. 5) the device is shownV tilted slightly in excess of the draught required so that the upper surface of the openiner is moulded by the'part 36 and the lower surface of the opening 32 is formed by the frame 38 or a combined frame and cope. Any suitable dowels or pins 45 may be provided on the mould part for aligning the mould during and after the sand moulding operation. Then the ash pit 28 or part- 14 is formed in accordance with my inv'cne tion the ash pan may be materially larger since the stove parts 12 and 13 are shifted to a position nearer the front wall of the housing andthe ash pan may lit snugly in the pit. The openings 22 in the base part 15 may also be larger permitting a larger volume of air to pass into the circulation chamber 17 thusl permitting a larger volume of air to circulate through the stove or circulation chamber and increasing the heating capacity of the stove. VThe front wall 31 of the part 14`being vertical permits the door 21 to be vsubstantially flat or a substantially Hat sheet having a short flange extending thereabout which may be finished to make unbroken contact with the face of the wall -31 for tightly closing the stove draught and since the door 21 may be made 'nan rower than a similar door that is arranged to abut against a tilted ash pit face the dust shelf on the top of the door which is formed by the flange thereof is materially decreased in width and the stove will for this reason not become soiled as, readily or hold layers of unsightly dust as in similar devices. The

ing at least one vertical Wall and a pluralityof Walls arranged at an angle to the vertical Wall.

It is thought that the invention and many of its attendant advantagesivill be understood from the foregoing description, andv it will be apparent that various changes may be made in the form, construction and arrangement of the parts Without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the forni hereinbefore described being merely a preferred embodiment thereof.

I claim:

l. A stove structure, comprising, a stove housing, means in said housing providing a combustion chamber, means for supporting said parts in said housing, said means comprising a base part supported in the heusd ing and arranged to provide an ash pit having a substantially vertical front Wall provided with an opening for the removal of an ash pan and a plurality of Walls disposed at an angle With said vertical Wall, and a door hinged ash pit and swinging in a horizontal plane to close said opening.

2. In a stove structure, the combination of a stove housing, parts providing a com-k bustion chamber Within said housing, apart providing integral ash pit Walls kincluding a vertical front Wall arranged beneath said combustion chamber and adapted to support the combustion chamber in said housing, and a door supported by saidy ash pit to the front Wall of said parts and 4arranged to close an ash pit opening formed in said vertical Wall, said door being arranged to contact with the vertical ash pit Wall around said opening.

3. In a stove,the combination of a housing and parts arranged Within said housing providing a combustion chamber, and a part arranged to provide ash pit Walls and to support said combustion chamber, said part comprising a vertical Wall provided with a door opening andwalls tapering from vertical lines surrounding the ash pit, and a vertically hinged door arranged to close said opening by engaging said vertical Wall adj acent said opening.

4. In a stove structure, the combination of parts providing a combustion chamber, ,a part arranged to support said combustion chamber and to provide ash pit Walls said part having a plane vertical Wall provided with an opening through which an ash pan may beV removed and a door arranged to lie in a vertical planeand to engage the front surface of said vertical yWall adjacent said opening when closing said opening.

5. In a stove structure. the combination of a housing, parts arranged Within said housing providing a combustion chamber,

` a part arranged to support said combustion chamber and to provide ash pit Walls, said part having a verticall Wall provided with an opening through which an ash pan may be removed, and a door arranged to swing iny a ,horizontall plane when closing" said opening, said door being arranged to engage said vertical Wall in a vertical-plane.

6. In a stove structure, the combination of a housing, parts arranged Within .said housing providing a combustion chamber, ash pit Walls having a vertical wall, said Wall having an opening therein and a vertically hinged door'for closingl said opening.

' CLAUDE M. DIBBLE. 

